Subject: Mail delivery problems - user unknown

From: [email-masked]
Date: Thu, 09 Aug 2007 23:43:14 +0000 (GMT)

The Following address had delivery problems: 
[email-masked], 550 User unknown.
 .... Original header follows ....

>From darwindaycelebration.org!marg.chaa Thu Aug  9 23:27:07 2007
Date: Thu, 9 Aug 2007 17:26:17 -0000
To: [email-masked]
From: "marg chaa" <[email-masked]>
Subject: